2146572229 has 2 divisors, whose sum is σ = 2146572230. Its totient is φ = 2146572228.

The previous prime is 2146572217. The next prime is 2146572283. The reversal of 2146572229 is 9222756412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1147380129 + 999192100 = 33873^2 + 31610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2146572229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2146572191 and 2146572200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2146572209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073286114 + 1073286115.

It is an arithmetic number, because the mean of its divisors is an integer number (1073286115).

Almost surely, 2^2146572229 is an apocalyptic number.

It is an amenable number.

2146572229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2146572229 is an equidigital number, since it uses as much as digits as its factorization.

2146572229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 2146572229 is about 46331.1151279569. The cubic root of 2146572229 is about 1289.9766093549.

The spelling of 2146572229 in words is "two billion, one hundred forty-six million, five hundred seventy-two thousand, two hundred twenty-nine".